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Accordion-like Elastic Wire
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作者 Tracy Staedter 孙易 《科技英语学习》 2007年第9期9-,共1页
随着弹性电线电路的问世,装有内置电子感应器的服装已离我们越来越近了。它能给我们的日常生活带来哪些便利呢?
关键词 accordion-like Elastic Wire
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Tailoring the interactions of heterostructured Ni_(4)N/Ni_(3)ZnC_(0.7)for efficient CO_(2)electroreduction 被引量:3
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作者 Junjie Wang Zhao Li +6 位作者 Zhaozhao Zhu Jinxia Jiang Yulan Li Jinju Chen Xiaobin Niu Jun Song Chen Rui Wu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2022年第12期1-7,I0001,共8页
Electrocatalytic CO_(2)reduction into CO has been regarded as one of the most promising strategies for sustainable carbon cycles at ambient conditions,but still faces challenges to achieve both high product selectivit... Electrocatalytic CO_(2)reduction into CO has been regarded as one of the most promising strategies for sustainable carbon cycles at ambient conditions,but still faces challenges to achieve both high product selectivity and large current density.Here,we report a Ni_(4)N/Ni_(3)ZnC_(0.7)heterostructured electrocatalyst embedded in accordion-like N-doped carbon through a simple molten salt annealing strategy.The optimal Ni_(4)N/Ni_(3)ZnC_(0.7)electrocatalyst achieves a high CO Faraday efficiency of 92.3%and a large total current density of-15.8 m A cm^(-2)at-0.8 V versus reversible hydrogen electrode,together with a long-term stability about 30 h.Density functional theory results reveal that the energy barrier for*COOH intermediate formation largely decreased on Ni_(4)N/Ni_(3)ZnC_(0.7)heterostructure compared with Ni_(4)N and Ni_(3)ZnC_(0.7),thus giving rise to enhanced activity and selectivity.A rechargeable Zn-CO_(2)battery is further assembled with Ni_(4)N/Ni_(3)ZnC_(0.7)catalyst as the cathode,which shows a maximum power density of 0.85 mW cm^(-2)and excellent stability. 展开更多
关键词 Interface engineering Ni_(4)N/Ni_(3)ZnC_(0.7) accordion-like structure CO_(2)electroreduction
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氮掺杂多孔碳电极CDI技术对水中四环素和硬度离子的高效去除 被引量:1
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作者 梅裕鹏 李艳花 +3 位作者 肖合 肖宇 罗美娟 唐力为 《环境工程学报》 CAS CSCD 北大核心 2023年第7期2118-2129,共12页
为解决水体中过剩四环素(tetracycline,TC)与水硬度离子(Ca^(2+)和Mg^(2+))等共存带来的复杂环境污染问题,采用分散聚合法将含氮单体聚合成手风琴状碳前驱体并将其碳化后,制备得到氮掺杂多孔碳材料(nitrogendoped porous carbon,NPC),... 为解决水体中过剩四环素(tetracycline,TC)与水硬度离子(Ca^(2+)和Mg^(2+))等共存带来的复杂环境污染问题,采用分散聚合法将含氮单体聚合成手风琴状碳前驱体并将其碳化后,制备得到氮掺杂多孔碳材料(nitrogendoped porous carbon,NPC),采用电容去离子技术考察了NPC电极同步去除不同水体、pH、初始浓度中TC和水硬度离子的能力。结果表明:Langmuir,Freundlich和Temkin模型对NPC样品电吸附TC的吸附等温线分别进行拟合,发现电吸附过程包含了化学吸附、强静电吸附和物理吸附等机制,吸附过程较为复杂;NPC独特的手风琴状层次结构,使得TC的电吸附容量高达854.3 mg·g^(-1),是传统自吸附的2.4倍(350.6 mg·g^(-1));稳定的层次结构与高导电碳网络结构,协同增强了NPC电极的吸附稳定性、再生性和循环稳定性,使其在自然水体中经过200次吸-脱附后吸附容量仍可保持在78%以上。由此可知,基于CDI技术的氮掺杂多孔碳电极能够有效地同步去除水体中的四环素和硬度离子。该研究结果可为复杂水体污染处理提供参考。 展开更多
关键词 四环素 水硬度离子 氮掺杂 手风琴状 分级多孔碳
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